A cap-twisting machine capable of realizing air intake and secondary cap-twisting

Abstract

The present invention provides a cap-twisting machine capable of achieving air suction and pipe entry and secondary cap twisting, comprising a base, a box-type Fukassen intermittent rotary mechanism provided on the base, a core shaft for placing aluminum tubes provided on the turntable of the box-type Fukassen intermittent rotary mechanism, a ventilation pipeline provided inside each core shaft, the front end of the ventilation pipeline located at the front end of the core shaft and connected to the outside, the end of the ventilation pipeline connected to an air suction pipeline and / or an air blowing pipeline through an air path conversion structure, the air suction pipeline connected to a vacuum generator, and the air blowing pipeline connected to an air supply device. The cap-twisting machine capable of achieving air suction and pipe entry and secondary cap twisting provided by the present invention, the core shaft adds the functions of suction and blowing, changes the way of pipe entry and exit, the speed of pipe entry and exit is fast, a secondary cap twisting station is added, the mobile mechanism of the primary cap twisting is adjusted and integrated with the mobile mechanism of the secondary cap twisting, which not only ensures the tightness of the pipe cap, but also saves installation space, and facilitates the realization of the cleaning head installation function.

Description

Technical Field

[0001] The invention relates to a cap twisting machine, belongs to the field of mechanical equipment, and in particular to a cap twisting machine capable of realizing air suction into a pipe and secondary cap twisting. Background Art

[0002] Capping is an important step in the production process of aluminum tubes. The specific operation is to rotate the cap with internal threads and the aluminum tube with external threaded ends to combine them.

[0003] The existing cap-twisting machine has the following defects:

[0004] 1. The tube feeding operation is a mechanical tube feeding method that uses a crank slider mechanism to push the aluminum tube from the suction drum to the core shaft. This tube feeding method requires the slider stroke to be greater than the length of the aluminum tube, which is not conducive to increasing the speed and results in slow tube feeding speed. The long stroke also easily causes the rod to be withdrawn in time.

[0005] 2. The Fukaisen rotary mechanism is used as the carrier of the core shaft. In order to take into account the overall rhythm of the pipe in and out and the cap twisting, the cap twisting time is not long, which may cause the cap to be loose.

[0006] 3. The forward and backward movement of the cap-twisting actuator is controlled by a servo motor. The installation space of the servo motor limits the equipment layout, resulting in the cap-twisting machine being unable to be equipped with a cleaning head installation function. Summary of the Invention

[0007] The purpose of the present invention is to overcome the existing defects and provide a cap twisting machine that can realize air suction into the pipe and secondary cap twisting, so as to solve the problems of slow pipe feeding speed, untimely rod retraction, loose cap twisting and inability to be equipped with a cleaning head installation function in the current cap twisting machine.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0009] The air intake pipe is rotated to move the air outlet pipe upwards and downwards to move the air outlet pipe upwards, thereby making the air outlet pipe upwards move the air outlet pipe upwards and downwards to move the air outlet pipe upwards.

[0010] Furthermore, the turntable is provided with a plurality of sleeves, the core shaft is provided in the sleeve, the middle section of the core shaft is located inside the sleeve and is rotatably connected to the sleeve, the end of the core shaft is connected to a driven pulley, the rotation driving device includes a driving pulley and a transmission pulley, the outer sides of the driving pulley and the transmission pulley are jointly sleeved with a driving belt, the outer side surface of the driving belt is tightly against the driven pulley, and the driving pulley is transmission-connected to a first motor; a first vent hole is opened on the side surface of the middle section of the core shaft, the first vent hole is communicated with the vent pipe, and the sleeve is provided with a plurality of An annular cavity is provided at the position of the first vent hole, a first vent connector is provided on the side of the sleeve, and the first vent connector is communicated with the annular cavity; the air path conversion structure includes an air flow channel, the air flow channel passes through the turntable shaft of the box-type Fu Kaisen intermittent rotary mechanism, the end cover of the air flow channel is provided with a vent flange cover, the vent flange cover is provided with an air suction connector, the air suction connector is connected to the vacuum generator, a vent pipe is provided in the air flow channel, the end of the vent pipe passes through the vent flange cover and is connected to the air supply device through a blowing connector; the vent The front end of the air pipe passes through to the front outer side of the turntable shaft, the front end sleeve of the ventilation pipe is provided with a diverter device, the outer cover of the diverter device is provided with a diverter cover, the diverter cover is sealed and fixedly connected to the turntable, the diverter device is penetrated by a suction hole, the suction hole is connected with the air flow channel through the suction cavity formed by the diverter cover, a blowing cavity is provided inside the diverter device, the part of the ventilation pipe located in the blowing cavity is provided with an air inlet hole, the front end face of the diverter device is provided with a blowing hole, the blowing hole is connected with the blowing cavity, and the axis of the ventilation pipe collinear with the center of the diverter hood; the diverter hood is provided with second ventilation holes of the same number as the sleeve, the arrangement of the second ventilation holes on the diverter hood is concentric with the arrangement of the sleeve on the turntable, the distance from the axis of the suction hole to the axis of the ventilation pipe, the distance from the axis of the blowing hole to the axis of the ventilation pipe and the distance from the axis of each second ventilation hole to the center of the diverter hood are all the same, a second ventilation connector is provided on the diverter hood corresponding to each second ventilation hole, and each second ventilation connector is connected to the first ventilation connector on the corresponding sleeve on the outside through an air pipe.

[0011] 18. The vent tube of claim 17, wherein the air intake opening is an air intake opening and the air intake opening is an air intake opening. The air intake opening is abutted against the outlet of the vent tube and is closed by the hook. The air intake opening is closed by the hook.

[0012] Furthermore, the cap-twisting station includes a primary cap-twisting station and a secondary cap-twisting station, and the secondary cap-twisting station is located between the primary cap-twisting station and the pipe-discharging station; the cap-twisting actuator includes a primary cap-twisting actuator and a secondary cap-twisting actuator, and an execution box is provided on the base, and the secondary cap-twisting actuator includes a first horizontal slide rail, which is fixed to the upper end of the execution box and is axially parallel to the core shaft, and a first slider is slidably connected to the first horizontal slide rail, and a first fixed plate is connected to the upper end of the first slider, and a cap-twisting conical groove block is provided on the end surface of the first fixed plate facing the turntable, and the cap-twisting conical groove block is opposite to the core shaft of the secondary cap-twisting station, and the lower end of the first slider is connected to a first cam rocker mechanism.

[0013] Furthermore, the first cam rocker mechanism includes a first swing arm, a fixed rotating shaft and a second horizontal slide rail, the second horizontal slide rail is fixed inside the execution box and is axially parallel to the core shaft, the middle part of the first swing arm is rotatably connected to the fixed rotating shaft, the upper end of the first swing arm is hinged with a first connecting rod, the other end of the first connecting rod is hinged with the first slider, the lower end of the first swing arm is hinged with a second connecting rod, the other end of the second connecting rod is hinged with a second slider, one side of the second slider is slidably connected to the second horizontal slide rail, the other side of the second slider is connected to the first plane disc type groove cam, and the first driving rotating shaft of the first plane disc type groove cam is transmission-connected to the second motor.

[0014] Furthermore, the one-time cap-twisting actuator includes a third horizontal slide rail, which is fixed to the upper end of the execution box and axially parallel to the core shaft, and a third slider is slidably connected to the third horizontal slide rail, and the upper end of the third slider is connected to a second fixed plate, and a clamping cylinder is provided on the end surface of the second fixed plate facing the turntable, and the clamping cylinder is provided with a clamp, and the center of the clamp connection line is facing the core shaft of the one-time cap-twisting station, and a pipe cap feeding track is provided between the clamp and the corresponding core shaft, and the lower end of the third slider is connected to a second cam rocker mechanism; the second cam rocker mechanism includes a second swing rod and a fourth horizontal slide rail, and the fourth horizontal slide rail is fixed to the inside of the execution box The gear train is connected to the gear selector, and the gear train is connected to the gear selector, and the gear train is connected to the gear selector, and the gear train is connected to the gear selector, and the gear train is connected to the gear selector.

[0015] Furthermore, two second fixing plates are arranged side by side and in a collinear manner, the arrangement components on the two second fixing plates are consistent, and two pipe cap feeding tracks are also correspondingly arranged; the gear ratio of the first transmission gear and the second transmission gear is 1:2.

[0016] Furthermore, the execution box is provided with an opening on the end face facing the pipe inlet suction hub, and the pipe inlet station is correspondingly provided with an auxiliary pipe pushing assembly, and the auxiliary pipe pushing assembly includes a fifth horizontal slide rail, and the fifth horizontal slide rail is fixed at the opening of the execution box and is parallel to the core shaft axis, and a fifth slider is slidably connected to the fifth horizontal slide rail, and a pipe inlet push rod is connected to the side of the fifth slider, and the front end of the pipe inlet push rod is facing the core shaft of the pipe inlet station, and the lower end of the fifth slider is connected to a third cam rocker mechanism; the third cam rocker mechanism includes a third swing rod and a sixth horizontal slide rail, and the sixth horizontal slide rail is fixed inside the execution box and is parallel to the core shaft axis, and the third swing rod The middle part is rotatably connected to the fixed rotating shaft, the upper end of the third swing arm is hinged with the fifth connecting rod, the other end of the fifth connecting rod is hinged with the fifth sliding block, the lower end of the third swing arm is hinged with the sixth connecting rod, the sixth connecting rod is connected to the sixth sliding block, the upper end of the sixth sliding block is slidably connected to the sixth horizontal slide rail, the lower end of the sixth sliding block is connected to a cylindrical cam follower, and the cylindrical cam active member matching the cylindrical cam follower is connected to a driving shaft, and the driving shaft is transmission-connected to the second motor; a driving helical gear is sleeved on the driving shaft, and a driven helical gear is provided at the end of the first driving shaft of the first plane disc groove cam, and the driving helical gear and the driven helical gear are meshed.

[0017] Furthermore, a cleaning head installation station is provided between the pipe feeding station and the one-time cap twisting station, and the cleaning head installation station is equipped with a cleaning head installation assembly. The cleaning head installation assembly includes a fixed seat, the lower end of the fixed seat is fixed to the upper end of the execution box, and the upper end of the fixed seat is installed with a push rod cylinder. The front end of the telescopic rod of the push rod cylinder is connected to an installation push rod. The installation push rod is parallel to the core shaft and faces the core shaft of the cleaning head installation station, and a cleaning head feeding track is provided between the front end of the installation push rod and the corresponding core shaft.

[0018] Furthermore, the cap-twisting station is equipped with a pressure wheel device, and the pressure wheel device includes a third fixed plate, and the third fixed plate is fixed above the front end surface of the turntable, and a plurality of pressure wheel assemblies are arranged at intervals on the third fixed plate, and each pressure wheel assembly corresponds to one of the core shafts; each pressure wheel assembly includes a mounting shaft, and one end of the rotating rod is hinged on the mounting shaft, and a pin is passed through the other end of the rotating rod, and a second support plate is provided above the other end of the rotating rod, and the pin passes through the second support plate and the end portion is threadedly connected to a nut, and a part of the pin located between the rotating rod and the second support plate is sleeved with a spring; a pressure wheel rotating shaft is provided on the rotating rod, and the pressure wheel rotating shaft is parallel to the core shaft, and a pressure wheel is rotatably connected to the pressure wheel rotating shaft.

[0019] The present invention provides a cap-twisting machine that can realize air suction inlet and secondary cap twisting. The core shaft adds the functions of air suction and blowing, changes the way of pipe entry and exit, and increases the speed of pipe entry and exit. A secondary cap-twisting station is added, and the moving mechanism of the primary cap twisting is adjusted and integrated with the moving mechanism of the secondary cap twisting, which not only ensures the tightness of the pipe cap, but also saves installation space, making it convenient to realize the installation function of the cleaning head. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 yes Figure 1 A magnified schematic diagram of point A in the middle;

[0023] Figure 3 This is a schematic diagram of the main view of the present invention (excluding the pipe cap feeding track and the cleaning head feeding track);

[0024] Figure 4 yes Figure 3 A magnified schematic diagram of point B in the middle;

[0025] Figure 5 It is a structural schematic diagram of the core shaft of the present invention;

[0026] Figure 6 It is a schematic diagram of the gas path conversion structure in the present invention;

[0027] Figure 7 yes Figure 6 The enlarged schematic diagram of point C in the middle;

[0028] Figure 8 It is a structural schematic diagram of the twist cap actuator and the auxiliary push tube assembly in the present invention;

[0029] Figure 9 It is a structural schematic diagram of the cleaning head installation assembly in the present invention. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] like Figure 1-9As shown, a cap-twisting machine capable of realizing air suction and pipe inlet and secondary cap twisting comprises a base 1, a box-type Fu Kaisen intermittent rotary mechanism is provided on the base 1, a core shaft 3 for placing aluminum tubes is provided on the turntable 2 of the box-type Fu Kaisen intermittent rotary mechanism, and the core shaft 3 at the cap twisting station is equipped with a rotary drive device; a pipe inlet suction hub 4 is provided in front of the core shaft 3 of the pipe inlet station, and a pipe outlet rotating hub 5 is provided in front of the core shaft 3 of the pipe outlet station, and a pipe inlet conveying rack 6 and a pipe outlet conveying rack 7 are provided on the outside of the pipe inlet suction hub 4 and the pipe outlet rotating hub 5 respectively, and a cap twisting actuator and a pipe cap feeding mechanism are provided between the pipe inlet suction hub 4 and the pipe outlet rotating hub 5; a ventilation pipeline 8 is provided inside each core shaft 3, the front end of the ventilation pipeline 8 is located at the front end of the core shaft 3 and is connected to the outside, and the end of the ventilation pipeline 8 is connected to the suction pipeline and the blowing pipeline through an air path conversion structure, the suction pipeline is connected to a vacuum generator, and the blowing pipeline is connected to an air supply device.

[0032] Twelve sleeves 9 are provided through the turntable 2. The twelve sleeves 9 are arranged circumferentially at equal intervals. A core shaft 3 is provided in the sleeve 9. The middle section of the core shaft 3 is located inside the sleeve 9 and is rotatably connected to the sleeve 9. The end of the core shaft 3 is connected to a driven pulley 10. The rotary drive device includes a driving pulley 11 and a transmission pulley 12. The outer sides of the driving pulley 11 and the transmission pulley 12 are jointly sleeved with a driving belt 13. The outer side of the driving belt 13 is in close contact with the driven pulley 10. The driving pulley 11 is connected to a first motor (not shown in the figure); a first vent hole 14 is opened on the side of the middle section of the core shaft 3. The first vent hole 14 is connected to the ventilation pipe 8. An annular cavity 15 is provided in the sleeve 9 at a position corresponding to the first vent hole 14, and a first vent joint 16 is provided on the side of the sleeve 9, and the first vent joint 16 is communicated with the annular cavity 15; the air path conversion structure includes an air flow channel 17, the air flow channel 17 passes through the turntable shaft of the box-type Fu Kaisen intermittent rotary mechanism, and the end cover of the air flow channel 17 is provided with a vent flange cover 18, and the vent flange cover 18 is provided with an air suction joint 19, and the air suction joint 19 is connected to the vacuum generator (not shown in the figure), and a vent pipe 20 is provided in the air flow channel 17, and the end of the vent pipe 20 passes through the vent flange cover 18 and is connected to the air supply device through the blowing joint 21 ( The front end of the vent pipe 20 passes through the front outer side of the turntable shaft, and the front end of the vent pipe 20 is provided with a diverter device. The outer cover of the diverter device is provided with a diverter cover 22. The diverter cover 22 is sealed and fixedly connected to the turntable 2. An air suction hole 23 is provided through the diverter device. The air suction hole 23 is connected to the air flow channel 17 through the air suction cavity 24 formed by the diverter cover 22. A blowing cavity 25 is provided inside the diverter device. The part of the vent pipe 20 located in the blowing cavity 25 is provided with an air inlet hole 26. The front end surface of the diverter device is provided with a blowing hole 27. The blowing hole 27 is connected to the blowing cavity 25. The axis of the vent pipe 20 is connected to the diverter The centers of the flow cover 22 are collinear; the diverter cover 22 is provided with second ventilation holes 28 of the same number as the sleeve 9, and the arrangement of the second ventilation holes 28 on the diverter cover 22 corresponds concentrically to the arrangement of the sleeve 9 on the turntable 2, the distance from the axis of the suction hole 23 to the axis of the ventilation pipe 20, the distance from the axis of the blowing hole 27 to the axis of the ventilation pipe 20, and the distance from the axis of each second ventilation hole 28 to the center of the diverter cover 22 are all the same, and a second ventilation connector 29 is provided on the diverter cover 22 corresponding to each second ventilation hole 28, and each second ventilation connector 29 is connected to the first ventilation connector 16 on the corresponding sleeve 9 on the outside through an air pipe (not shown in the figure).

[0033] The air intake duct 20 has an inlet 27 and an outlet 28, and the outlet 28 has an outlet 29. The air intake duct 20 has an outlet 29, and the outlet 29 has an outlet 30. The air intake duct 20 has an outlet 29, and the outlet 29 has an outlet 30. The compression spring presses the diverter disc and diverter plate onto the diverter cover to ensure air tightness.

[0034] Working principle of inlet and outlet pipe:

[0035] During the rotation of the turntable, the second air vent corresponding to the core shaft of the pipe inlet station is connected to the suction hole, and the second air vent corresponding to the core shaft of the pipe outlet station is connected to the blowing hole. The core shaft of the pipe inlet station absorbs air to form a negative pressure in the aluminum tube on the pipe inlet suction hub. Under the action of the negative pressure, the aluminum tube moves to the core shaft to complete the pipe inlet operation. The core shaft of the pipe outlet station blows air to blow the aluminum tube onto the pipe outlet rotating hub to complete the pipe outlet operation.

[0036] The cap-twisting station includes a primary cap-twisting station and a secondary cap-twisting station, and the secondary cap-twisting station is located between the primary cap-twisting station and the pipe-discharging station; the cap-twisting actuator includes a primary cap-twisting actuator and a secondary cap-twisting actuator, and an execution box 34 is provided on the base 1, and the secondary cap-twisting actuator includes a first horizontal slide rail 35, and the first horizontal slide rail 35 is fixed to the upper end of the execution box 34 and is axially parallel to the core shaft 3, and a first slider 36 is slidably connected to the first horizontal slide rail 35, and a first fixed plate 37 is connected to the upper end of the first slider 36, and a cap-twisting conical groove block (not shown in the figure) is provided on the end surface of the first fixed plate 37 facing the turntable 2, and the cap-twisting conical groove block is opposite to the core shaft 3 of the secondary cap-twisting station, and the lower end of the first slide 36 is connected to the first cam rocker mechanism.

[0037] The first cam rocker mechanism includes a first swinging rod 38, a fixed rotating shaft 39 and a second horizontal slide rail 40. The second horizontal slide rail 40 is fixed inside the execution box 34 and is axially parallel to the core shaft 3. The middle part of the first swinging rod 38 is rotatably connected to the fixed rotating shaft 39. The upper end of the first swinging rod 38 is hinged with a first connecting rod 41, and the other end of the first connecting rod 41 is hinged to the first slider 36. The lower end of the first swinging rod 38 is hinged with a second connecting rod 42, and the other end of the second connecting rod 42 is hinged with a second slider 43. One side of the second slider 43 is slidably connected to the second horizontal slide rail 40, and the other side of the second slider 43 is connected to the first plane disc type groove cam 44. The first driving rotating shaft 45 of the first plane disc type groove cam 44 is transmission-connected to the second motor (not shown in the figure).

[0038] The one-time cap-twisting actuator includes a third horizontal slide rail 46, which is fixed to the upper end of the execution box 34 and is axially parallel to the core shaft 3. A third slider 47 is slidably connected to the third horizontal slide rail 46, and the upper end of the third slider 47 is connected to a second fixed plate 48. A clamping cylinder 49 is provided on the end surface of the second fixed plate 48 facing the turntable 2. The clamping cylinder 49 is provided with a clamp 50. The center of the line connecting the clamps 50 is facing the core shaft 3 of the one-time cap-twisting station. A pipe cap feeding track 51 is provided between the clamp 50 and the corresponding core shaft 3. The lower end of the third slider 47 is connected to a second cam rocker mechanism; the second cam rocker mechanism includes a second swinging rod 52 and a fourth horizontal slide rail 53. The fourth horizontal slide rail 53 is fixed inside the execution box 34 and is axially parallel to the core shaft 3. Axially parallel, the middle part of the second swing arm 52 is rotatably connected to the fixed shaft 39, the upper end of the second swing arm 52 is hinged with the third connecting rod 54, the other end of the third connecting rod 54 is hinged with the third slider 47, the lower end of the second swing arm 52 is hinged with the fourth connecting rod 55, the other end of the fourth connecting rod 55 is hinged with the fourth slider 56, one side of the fourth slider 56 is slidably connected to the fourth horizontal slide rail 53, and the other side of the fourth slider 56 is connected to the second planar disc-type groove cam 57; the end of the first driving shaft 45 of the first planar disc-type groove cam 44 is provided with a first transmission gear 58, and the end of the second driving shaft 59 of the second planar disc-type groove cam 57 is provided with a second transmission gear 60, and the first transmission gear 58 and the second transmission gear 60 are meshed.

[0039] Two second fixing plates 48 are arranged side by side and collinearly, and the components arranged on the two second fixing plates 48 are consistent. Two pipe cap feeding tracks 51 are also correspondingly provided; the gear ratio of the first transmission gear 58 and the second transmission gear 60 is 1:2.

[0040] Working principle of twist cap:

[0041] The second motor controls the rotation of the first drive shaft, which is then rotated by gear transmission. The second flat disc groove cam drives the fourth slider to slide along the fourth horizontal slide rail. The second swing arm rotates to drive the third slider to slide along the third horizontal slide rail. During the movement of the third slider, the pipe cap moves along the pipe cap feeding track to the clamps and is clamped. The third slider moves the pipe cap toward the aluminum tube, and the core shaft drives the aluminum tube to rotate to complete a cap twisting operation. Then the clamps are released and the third slider is reset.

[0042] The second motor controls the rotation of the first driving shaft, and the first flat disc groove cam drives the second slider to slide along the second horizontal slide rail. The first swing arm rotates to drive the first slider to slide along the first horizontal slide rail. The capping conical groove block docks with the cap on the aluminum tube, and the core shaft drives the aluminum tube to rotate to complete the second capping, and then the first slider is reset;

[0043] Each time the turntable rotates once, the second twist cap performs an operation, and each time the turntable rotates twice, the first twist cap performs an operation.

[0044] The execution box 34 is provided with an opening on the end face facing the pipe inlet suction hub 4, and an auxiliary pipe pushing assembly is provided corresponding to the pipe inlet station. The auxiliary pipe pushing assembly includes a fifth horizontal slide rail 61, which is fixed at the opening of the execution box 34 and is axially parallel to the core shaft 3. A fifth slider 62 is slidably connected to the fifth horizontal slide rail 61, and a pipe inlet push rod 63 is connected to the side of the fifth slider 62. The front end of the pipe inlet push rod 63 faces the core shaft 3 of the pipe inlet station, and the lower end of the fifth slider 62 is connected to a third cam rocker mechanism; the third cam rocker mechanism includes a third swing rod 64 and a sixth horizontal slide rail 65. The sixth horizontal slide rail 65 is fixed inside the execution box 34 and is axially parallel to the core shaft 3. The middle part of the third swing rod 64 is connected to the fixed rotating shaft 3 9 rotation connection, the upper end of the third swing arm 64 is hinged with the fifth connecting rod 66, the other end of the fifth connecting rod 66 is hinged with the fifth slider 62, the lower end of the third swing arm 64 is hinged with the sixth connecting rod 67, the sixth connecting rod 67 is connected to the sixth slider 68, the upper end of the sixth slider 68 is slidably connected to the sixth horizontal slide rail 65, the lower end of the sixth slider 68 is connected with a cylindrical cam follower 69, and the cylindrical cam active member 70 matching the cylindrical cam follower 69 is connected to the drive shaft 71, and the drive shaft 71 is transmission-connected to the second motor; a driving bevel gear 72 is sleeved on the drive shaft 71, and a driven bevel gear 73 is provided at the end of the first driving shaft 45 of the first flat disc groove cam 44, and the driving bevel gear 72 and the driven bevel gear 73 are meshed.

[0045] The second motor controls the rotation of the cylindrical cam active part, pushes the cylindrical cam follower to drive the sixth slider to slide along the sixth horizontal slide rail, and the third swing rod rotates to drive the fifth slider to slide along the fifth horizontal slide rail. The pipe inlet push rod pushes the aluminum pipe on the pipe inlet suction hub facing the pipe inlet station core shaft toward the core shaft by a set distance, thereby ensuring the smooth generation of negative pressure and assisting the smooth completion of the pipe inlet work, with a short pushing stroke and a low failure rate of the rod retraction.

[0046] A cleaning head installation station is provided between the pipe feeding station and the one-time capping station. The cleaning head installation station is equipped with a cleaning head installation assembly. The cleaning head installation assembly includes a fixed seat 74. The lower end of the fixed seat 74 is fixed to the upper end of the execution box 34. A push rod cylinder 75 is installed on the upper end of the fixed seat 74. The front end of the telescopic rod of the push rod cylinder 75 is connected to an installation push rod 76. The installation push rod 76 is axially parallel to the core shaft 3 and is facing the core shaft 3 of the cleaning head installation station. A cleaning head feeding track 77 is provided between the front end of the installation push rod 76 and the corresponding core shaft 3.

[0047] The aluminum tube is transferred to the cleaning head installation station. The cleaning head moves along the cleaning head feed track to the front of the aluminum tube. The push rod cylinder operates to press the cleaning head to the front of the aluminum tube, completing the cleaning head installation. The transmission components of the twist cap actuator are all located in the actuator box, leaving enough space at the top of the actuator box to install the cleaning head installation assembly.

[0048] The cap twisting station is equipped with a pressure wheel device, which includes a third fixed plate 78, which is fixed above the front end surface of the turntable 2, and three pressure wheel assemblies are arranged at intervals on the third fixed plate 78, each pressure wheel assembly corresponds to a core shaft 3; each pressure wheel assembly includes a mounting shaft 79, and one end of a rotating rod 80 is hinged on the mounting shaft 79, and a pin 81 is passed through the other end of the rotating rod 80, and a second support plate 82 is provided above the other end of the rotating rod 80 of the third fixed plate 78, and the pin 81 passes through the second support plate 82 and is threadedly connected to a nut 83 at the end, and a spring 84 is provided on the part of the pin 81 located between the rotating rod 80 and the second support plate 82; a pressure wheel shaft 85 is provided on the rotating rod 80, and the pressure wheel shaft 85 is parallel to the core shaft 3, and a pressure wheel 86 is rotatably connected to the pressure wheel shaft 85.

[0049] The core shaft of the cap-twisting station drives the aluminum tube to rotate, and uses the elastic force of the spring to make the pressure wheel close to the surface of the aluminum tube, increasing the friction between the aluminum tube and the core shaft, thereby improving the tightness of the tube cap.

[0050] The present invention provides a cap-twisting machine that can realize air suction inlet and secondary cap twisting. The core shaft adds the functions of air suction and blowing, changes the way of pipe entry and exit, and increases the speed of pipe entry and exit. A secondary cap-twisting station is added, and the moving mechanism of the primary cap twisting is adjusted and integrated with the moving mechanism of the secondary cap twisting, which not only ensures the tightness of the pipe cap, but also saves installation space, making it convenient to realize the installation function of the cleaning head.

[0051] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A cap-twisting machine capable of achieving air intake and secondary cap-twisting, characterized by: It includes a base, on which a box-type Fu Kaisen intermittent rotary mechanism is provided, a mandrel for placing the aluminum tube is provided on the turntable of the box-type Fu Kaisen intermittent rotary mechanism, and the mandrel at the capping station is equipped with a rotation drive device; A pipe inlet suction hub is provided in front of the core shaft of the pipe inlet station, and a pipe outlet rotating hub is provided in front of the core shaft of the pipe outlet station. A pipe inlet conveying rack and a pipe outlet conveying rack are provided on the outsides of the pipe inlet suction hub and the pipe outlet rotating hub respectively. A cap twisting actuator and a pipe cap feeding mechanism are provided between the pipe inlet suction hub and the pipe outlet rotating hub; A ventilation pipeline is provided inside each of the core shafts, the front end of the ventilation pipeline is located at the front end of the core shaft and is connected to the outside world, the end of the ventilation pipeline is connected to an air suction pipeline and / or an air blowing pipeline through an air path conversion structure, the air suction pipeline is connected to a vacuum generator, and the air blowing pipeline is connected to an air supply device; The capping station includes a primary capping station and a secondary capping station, and the secondary capping station is located between the primary capping station and the pipe outlet station; The cap twisting actuator includes a primary cap twisting actuator and a secondary cap twisting actuator, an execution box is provided on the base, and the secondary cap twisting actuator includes a first horizontal slide rail, the first horizontal slide rail is fixed to the upper end of the execution box and is parallel to the core shaft, a first slider is slidably connected to the first horizontal slide rail, the upper end of the first slider is connected to a first fixing plate, a cap twisting conical groove block is provided on the end surface of the first fixing plate facing the turntable, the cap twisting conical groove block is facing the core shaft of the secondary cap twisting station, and the lower end of the first slider is connected to a first cam rocker mechanism; The cap twisting station is equipped with a pressure wheel device, which includes a third fixed plate, which is fixed above the front end surface of the turntable, and a plurality of pressure wheel assemblies are arranged on the third fixed plate at intervals, and each pressure wheel assembly corresponds to one of the core shafts; Each of the pressure wheel assemblies includes a mounting shaft, one end of a rotating rod is hingedly connected to the mounting shaft, a pin is passed through the other end of the rotating rod, a second support plate is provided above the other end of the rotating rod, the pin passes through the second support plate and a nut is threadedly connected to the end thereof, and a spring is sleeved on a portion of the pin located between the rotating rod and the second support plate; A pressure wheel shaft is provided on the rotating rod, the pressure wheel shaft is parallel to the core shaft, and a pressure wheel is rotatably connected to the pressure wheel shaft.

2. A cap-twisting machine capable of realizing air suction and secondary cap-twisting according to claim 1, characterized in that: The turntable is provided with a plurality of sleeves, the core shaft is provided in the sleeve, the middle section of the core shaft is located inside the sleeve and is rotatably connected to the sleeve, the end of the core shaft is connected to a driven pulley, the rotation drive device includes a driving pulley and a transmission pulley, the outer sides of the driving pulley and the transmission pulley are jointly sleeved with a driving belt, the outer side of the driving belt is in close contact with the driven pulley, and the driving pulley is connected to the first motor; A first vent hole is provided on the side of the middle section of the core shaft, the first vent hole is communicated with the vent pipe, an annular cavity is provided in the sleeve at a position corresponding to the first vent hole, and a first vent joint is provided on the side of the sleeve, the first vent joint is communicated with the annular cavity; The air path conversion structure includes an air flow channel, the air flow channel passes through the turntable shaft of the box-type Fu Kaisen intermittent rotary mechanism, the end cover of the air flow channel is provided with a vent flange cover, the vent flange cover is provided with an air suction joint, the air suction joint is connected to the vacuum generator, and a vent pipe is provided in the air flow channel, the end of the vent pipe passes through the vent flange cover and is connected to the air supply device through a blow joint; The front end of the vent pipe passes through to the front outer side of the turntable shaft, the front end of the vent pipe is sleeved with a diverter device, the outer cover of the diverter device is provided with a diverter cover, the diverter cover is sealed and fixedly connected to the turntable, and the diverter device is penetrated by a suction hole, and the suction hole is connected with the air flow channel through the suction cavity formed by the diverter cover. A blowing cavity is provided inside the diverter device, and an air inlet hole is opened in the part of the vent pipe located in the blowing cavity, and a blowing hole is provided on the front end surface of the diverter device, and the blowing hole is connected with the blowing cavity, and the axis center of the vent pipe is collinear with the center center of the diverter cover; The diverter hood is provided with second ventilation holes with the same number as the sleeve, and the arrangement of the second ventilation holes on the diverter hood is concentric with the arrangement of the sleeve on the turntable. The distance from the axis of the suction hole to the axis of the ventilation pipe, the distance from the axis of the blowing hole to the axis of the ventilation pipe, and the distance from the axis of each second ventilation hole to the center of the diverter hood are all the same. A second ventilation connector is provided on the diverter hood corresponding to each second ventilation hole, and each second ventilation connector is connected to the first ventilation connector on the corresponding sleeve on the outside through an air pipe.

3. A cap-twisting machine capable of realizing air suction and secondary cap-twisting according to claim 2, characterized in that: The diverter device includes a diverter plate, the center of which is connected to the vent pipe, a first air suction hole is provided on one end surface of the center of the diverter plate, and an air blowing groove is provided on the center of the diverter plate and the front end surface on the other side of the center; A diverter plate is provided at the front end of the diverter plate, and a second air suction hole corresponding to and connected to the first air suction hole is provided on the diverter plate. The first air suction hole and the second air suction hole are connected to form the air suction hole. The diverter plate and the diverter plate are buckled together so that the blowing groove forms a blowing cavity. The blowing hole is provided on the diverter plate; A first support plate is provided at the front end of the vent pipe behind the diverter plate, a latch is provided on the end face of the first support plate facing the diverter plate, a slot is provided on the rear end face of the diverter plate at a position corresponding to the latch, a compression spring is sleeved on the latch, and both ends of the compression spring are in contact with the first support plate and the bottom of the slot respectively.

4. The cap-twisting machine capable of realizing air suction and secondary cap twisting according to claim 1, characterized in that: The first cam rocker mechanism includes a first swing arm, a fixed rotating shaft and a second horizontal slide rail. The second horizontal slide rail is fixed inside the execution box and is parallel to the core shaft. The middle part of the first swing arm is rotatably connected to the fixed rotating shaft. The upper end of the first swing arm is hinged with a first connecting rod, and the other end of the first connecting rod is hinged with the first slider. The lower end of the first swing arm is hinged with a second connecting rod, and the other end of the second connecting rod is hinged with a second slider. One side of the second slider is slidably connected to the second horizontal slide rail, and the other side of the second slider is connected to the first plane disc groove cam. The first driving rotating shaft of the first plane disc groove cam is transmission-connected to the second motor.

5. The cap-twisting machine capable of realizing air suction and secondary cap-twisting according to claim 4, characterized in that: The one-time cap-twisting actuator includes a third horizontal slide rail, the third horizontal slide rail is fixed to the upper end of the execution box and is parallel to the core shaft, the third slider is slidably connected to the third horizontal slide rail, the upper end of the third slider is connected to the second fixed plate, the end surface of the second fixed plate facing the turntable is provided with a clamping cylinder, the clamping cylinder is provided with a clamp, the center of the clamp connection line is facing the core shaft of the one-time cap-twisting station, a pipe cap feeding track is provided between the clamp and the corresponding core shaft, and the lower end of the third slider is connected to the second cam rocker mechanism; The second cam rocker mechanism includes a second swing lever and a fourth horizontal slide rail, the fourth horizontal slide rail is fixed inside the execution box and parallel to the core shaft, the middle portion of the second swing lever is rotatably connected to the fixed rotating shaft, the upper end of the second swing lever is hinged to a third connecting rod, the other end of the third connecting rod is hinged to the third slider, the lower end of the second swing lever is hinged to a fourth connecting rod, the other end of the fourth connecting rod is hinged to a fourth slider, one side of the fourth slider is slidably connected to the fourth horizontal slide rail, and the other side of the fourth slider is connected to a second plane disc groove cam; A first transmission gear is provided at the end of the first driving shaft of the first plane disc type groove cam, and a second transmission gear is provided at the end of the second driving shaft of the second plane disc type groove cam, and the first transmission gear and the second transmission gear are meshed.

6. A cap-twisting machine capable of realizing air suction and secondary cap-twisting according to claim 5, characterized in that: Two second fixing plates are arranged side by side and collinearly, and the components arranged on the two second fixing plates are consistent. Two pipe cap feeding tracks are also correspondingly arranged; The gear ratio of the first transmission gear to the second transmission gear is 1:

2.

7. The cap-twisting machine capable of realizing air suction and secondary cap-twisting according to claim 4, characterized in that: The end surface of the execution box body facing the pipe inlet suction hub is provided with an opening, and the pipe inlet station is correspondingly provided with an auxiliary pipe pushing assembly, and the auxiliary pipe pushing assembly includes a fifth horizontal slide rail, which is fixed at the opening of the execution box body and is parallel to the core shaft. A fifth slider is slidably connected to the fifth horizontal slide rail, and a pipe inlet push rod is connected to the side of the fifth slider. The front end of the pipe inlet push rod is facing the core shaft of the pipe inlet station, and the lower end of the fifth slider is connected to a third cam rocker mechanism; The third cam rocker mechanism includes a third swing lever and a sixth horizontal slide rail, the sixth horizontal slide rail is fixed inside the execution box and axially parallel to the core shaft, the middle portion of the third swing lever is rotatably connected to the fixed rotating shaft, the upper end of the third swing lever is hinged with a fifth connecting rod, the other end of the fifth connecting rod is hinged with the fifth slider, the lower end of the third swing lever is hinged with a sixth connecting rod, the sixth connecting rod is connected to the sixth slider, the upper end of the sixth slider is slidably connected to the sixth horizontal slide rail, the lower end of the sixth slider is connected to a cylindrical cam follower, and the cylindrical cam active member matching the cylindrical cam follower is connected to a driving shaft, and the driving shaft is transmission-connected to the second motor; A driving helical gear is sleeved on the driving shaft, and a driven helical gear is provided at the end of the first driving shaft of the first flat disc groove cam. The driving helical gear is meshed with the driven helical gear.

8. The cap-twisting machine capable of realizing air suction and secondary cap-twisting according to claim 1, characterized in that: A cleaning head installation station is provided between the pipe feeding station and the one-time capping station. The cleaning head installation station is equipped with a cleaning head installation assembly. The cleaning head installation assembly includes a fixed seat. The lower end of the fixed seat is fixed to the upper end of the execution box. A push rod cylinder is installed on the upper end of the fixed seat. The front end of the telescopic rod of the push rod cylinder is connected to an installation push rod. The installation push rod is parallel to the core shaft and faces the core shaft of the cleaning head installation station. A cleaning head feeding track is provided between the front end of the installation push rod and the corresponding core shaft.

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